Title :
A unique MMIC broadband power amplifier approach
Author :
Arell, Thomas ; Hongsmatip, Thongchai
Author_Institution :
Microelectronic Div., M/A-COM, Lowell, MA, USA
fDate :
10/1/1993 12:00:00 AM
Abstract :
A broadband monolithic microwave integrated circuit (MMIC) power amplifier design approach is described using lossy matching networks in the form of a bridged-T all-pass network. This approach offers the advantage of exceptional gain flatness, good input VSWR, high efficiency, and small size. A two-stage amplifier is described that delivers power greater than 1 W across the 2 to 6-GHz range with a linear gain of 20 dB, an input VSWR better than 1.7:1, and a power-added efficiency of 30% to 37% with a chip area less than 4.4 mm2
Keywords :
MMIC; field effect integrated circuits; microwave amplifiers; power amplifiers; wideband amplifiers; 1 W; 2 to 6 GHz; 20 dB; 30 to 37 percent; MMIC; SHF; bridged-T all-pass network; broadband power amplifier; design approach; lossy matching networks; monolithic microwave integrated circuit; two-stage amplifier; Bandwidth; Broadband amplifiers; Capacitance; Couplers; Distributed amplifiers; Impedance matching; MMICs; Microwave integrated circuits; Power amplifiers; Voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
